Visitors walk on a broken mirror on the floor of an installation by Italian artist Alfredo Pirri, which is being displayed in the once-secret bunker built to shelter Yugoslavia's leaders from a nuclear war. For three months, the bunker will become one of the world's quirkiest contemporary art galleries.

Family members of Sal Castro release doves at the conclusion of a funeral Mass for the former teacher at the Cathedral of Our Lady of the Angels. Castro was one of the leaders of the 1968 Chicano student walkouts, a protest for better schools that is considered the start of the Chicano movement.

Tobias Dustin Summers, accused of kidnapping and sexually assaulting a 10-year-old Northridge girl, talks to attorney Andrea Lemberg in a San Fernando courtroom. His arraignment was delayed until May 2.

President Obama and First Lady Michelle Obama stand with former Presidents George H.W. Bush and George W. Bush and their wives, Barbara Bush and Laura Bush, respectively, during a prayer at the dedication of the George W. Bush presidential library on the campus of Southern Methodist University.

The George W. Bush presidential library, featuring more than 70 million pages of paper records, 43,000 artifacts, 200 million emails and 4 million digital photographs, will be opened to the public May 1.

Tobias Dustin Summers is escorted by Los Angeles police officers shortly after arriving in the United States from Mexico. Summers is suspected of kidnapping and assaulting a 10-year-old Northridge girl. He was captured at a rehabilitation center south of Tijuana.

Students at the University of South China light candles to pray for quake victims. A powerful magnitude 6.6 earthquake struck the steep hills of China's southwestern Sichuan province last week, leaving at least 196 people dead and more than 12,200 injured.

Police officers detain a Greenpeace activist wearing a polar bear costume outside the office of Norwegian oil and gas group Statoil after a staged show against Statoil's planned drilling in the Arctic.

Pedestrians walk past the spot where the first bomb detonated near the finish line of the Boston Marathon on Boylston Street. Traffic was allowed to flow all the way down Boylston on Wednesday morning for the first time since two explosions on April 15.

New Cal State Chancellor Timothy P. White break dances at the Cal State Dominguez Hills campus, the latest stop on his first-year tour of all 23 universities. So far he's made a big impression by approaching students to hear their stories and familiarizing himself with the larger campus community.

Relatives mourn a victim at the site where an eight-story building housing several garment factories collapsed. The building collapsed near Bangladesh's capital Wednesday morning, killing dozens of people and trapping many more in the rubble.

Apartment towers and the International Commerce Centre are seen through a work of art entitled "Poetic Cosmos of the Breath" by Argentine artist Tomas Saraceno, which is part of the 'Inflation!' exhibition curated by Mobile M+.

Professor Paul Anderson, director of Digital Design Studio, attends the unveiling of a 3D visualization of a human head and neck. Designed by Glasgow School of Arts Digital Design Studio, the visualization will improve medical and dental training.

Almost 100 years after they were killed in action in the First World War, British soldiers Lt. John Harold Pritchard and Pvt. Christopher Douglas Elphick are re-interred with full military honors in a private ceremony. A poppy wreath and Lt. Pritchard's sword are handed to Prince Michael of Kent, center right, during a ceremony in northern France. The soldiers were killed during a German offensive near Bullecourt, on the Hindenburg Line, in the early hours of May 15, 1917.

A newsstand copy of Time magazine displays the cover photo of Pakistani girl Malala Yousafzai, who at 15 was shot and injured by Taliban militants because of her support for education and self-determination for women. She is named in Time's list of the world's 100 most influential people.

Earthquake-triggered landslides and fallen rocks have blocked vital supply routes to remote towns and villages in this mountainous area of southwest China. Residents receive rice rations at a distribution point. Saturday's quake, which Chinese authorities said had a preliminary magnitude of 7, killed at least 188 people.

Patrick Kane is fitted with the new Touch Bionics prosthetic hand, which has a powered thumb rotation along with multiple grip patterns that enables users to perform daily activities easier than with previous prostheses.

Children use a metal beam as a playground slide. The Philippines has failed to make headway in cutting poverty, with more than one in four citizens deemed poor despite the country's economic growth, according to census figures released Tuesday.

People run during aftershocks to avoid falling rocks in southwest China's Sichuan province. Clogged roads, debris and landslides impeded rescuers as they battled to find survivors of a powerful earthquake.

A sign reading 'R.I.P. Krystle Campbell In Our Heart Forever,' is seen in Medford Square, where Campbell's funeral was to be held later in the morning. Campbell was one of three people killed in the Boston Marathon bombing.

The Week in Pictures | April 22 – April 28, 2013

President Obama and all four living ex-presidents were on hand in Texas this week for the dedication of George W. Bush’s presidential library on the campus of Southern Methodist University in Dallas. The library, featuring more than 70 million pages of paper records, 43,000 artifacts, 200 million emails and 4 million digital photographs, will be opened to the public May 1.

A memorial was held this week in Massachusetts for MIT police officer Sean Collier, who was killed during a confrontation in Cambridge with the Boston Marathon bombing suspects.

Dramatic images come this week from China, where people ran to avoid falling rocks during aftershocks after a magnitude 6.6 quake jolted the Sichuan province, clogging roads and causing landslides that impeded rescuers as they searched for survivors.

Images from Earth Day include a boy searching for a ball in a garbage-choked Mumbai canal, and a woman holding a parasol while hoola-hooping at an Earth Day Festival in North Carolina.

An honor guard lays flowers at the Chernobyl victims’ memorial in Belarus. Friday was the 27th anniversary of the world’s worst nuclear disaster, at the Chernobyl nuclear pant in Ukraine.

Elsewhere, a 3,350-year-old prehistorical wooden staircase in a salt mine is shown to the media in Austria; kidnapping suspect Tobias Dustin Summers is escorted by Los Angeles police shortly after arriving in the United States from Mexico; students of the University of South China light candles to pray for quake victims in China; Bangladeshi volunteers and rescue workers continue to look for survivors of a building collapse just outside Dhaka, the capital; a series of explosions ignites fires aboard two fuel barges on the Mobile River in Alabama; and white tiger cubs, three males and one female, make their debut at the Tobu Zoo Park in Japan.

Add stops in Egypt, Syria, England, France, Romania and Switzerland to round out the report.